The symbolic ride tracked Abraham Lincoln's historical journey in 1861 from Philadelphia, where the Constitution was written, to Delaware, where it was ratified, and finally to Washington. It's a must-see route for tourists passionate about American history.

OBAMA IN COLUMBIA UNIVERSITY, NEW YORK, US

Obama at Columbia University, where he majored in political science and graduated in 1983.

He went on to graduate from Harvard Law School in 1991, where he was the first African-American president of the Harvard Law Review.

Columbia University is one of the top academic research institutions in the world. Plus there's plenty to see and do in New York.

OBAMA IN WASHINGTON DC, US

The Obamas now call the White House in Washington DC home. Previously the Obamas lived in a condominium in Hyde Park, Chicago, before moving to a $US1.6 million house in nearby Kenwood in 2005.

The White House has 132 rooms and is more than 51 metres long. So go on, check out the White House for yourself and get a dose of US history!